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  1. Hadoop HDFS
  2. HDFS-14557

JournalNode error: Can't scan a pre-transactional edit log

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.6.0
    • 3.3.0, 3.2.1, 3.1.3
    • ha
    • None

    Description

      We saw the following error in JournalNodes a few times before.

      2016-09-22 12:44:24,505 WARN org.apache.hadoop.hdfs.server.namenode.FSImage: Caught exception after scanning through 0 ops from /data/1/dfs/current/ed
      its_inprogress_0000000000000661942 while determining its valid length. Position was 761856
      java.io.IOException: Can't scan a pre-transactional edit log.
      at org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$LegacyReader.scanOp(FSEditLogOp.java:4592)
      at org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.scanNextOp(EditLogFileInputStream.java:245)
      at org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.scanEditLog(EditLogFileInputStream.java:355)
      at org.apache.hadoop.hdfs.server.namenode.FileJournalManager$EditLogFile.scanLog(FileJournalManager.java:551)
      at org.apache.hadoop.hdfs.qjournal.server.Journal.scanStorageForLatestEdits(Journal.java:193)
      at org.apache.hadoop.hdfs.qjournal.server.Journal.<init>(Journal.java:153)
      at org.apache.hadoop.hdfs.qjournal.server.JournalNode.getOrCreateJournal(JournalNode.java:90)
      

      The edit file was corrupt, and one possible culprit of this error is a full disk. The JournalNode can't recovered and must be resync manually from other JournalNodes. 

      Attachments

        1. HDFS-14557.branch-3.1.001.patch
          7 kB
          Wei-Chiu Chuang
        2. HDFS-14557.002.patch
          7 kB
          Stephen O'Donnell
        3. HDFS-14557.001.patch
          6 kB
          Stephen O'Donnell

        Activity

          People

            sodonnell Stephen O'Donnell
            weichiu Wei-Chiu Chuang
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            Dates

              Created:
              Updated:
              Resolved: